Rounded wheel lug nut
#1
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Rounded wheel lug nut
I was planning to install new brake pads on my Mustang this past weekend but when I went to the first lug nut, I couldn't even fit the socket properly on the lug nut. When I looked closer, I could see that it had been partially rounded. Luckily none of the other lug nuts on that wheel or any of the other wheels had that. Given that I hadn't previously ever removed the wheels myself, I knew it had to have been done by the Ford service tech at my last service appointment when I had "The Works." I have an appointment with them this Saturday to do the passenger side airbag recall. Would it be uncouth of me to bring up the lug nut issue and ask if they can remove and replace it with another spare lug nut I have? Also, I don't know what torque they use for the lug nuts but I don't know how I could ever change a flat tire on the side of the road. I couldn't even get off the other lug nuts with an 18" breaker bar and a cheater pipe. I can't be that weak because I just changed the brakes on my 2002 Explorer without having to use a breaker bar.
#2
Lug nuts should be torqued to 100 ft/lbs. It sounds like they put them on with an impact wrench. I would ask them to replace the rounded lug nut and to hand torque all the lugs to prevent issues in the future.
#3
2014 SGM Roush Stage 2 --------- Moderator------
I assume you have take these off your self before right? If not could the rounded lug nut be a lock nut?
#4
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#7
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Join Date: August 28, 2005
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Most of the damage occurring to the 2pc lug nuts are using a standard sae impact socket instead of the proper metric size; using a 12 point socket, which usually rounds the nut off; and definitely using a shallow impact socket instead of a proper 6 point deep impact. The shallow socket may deform the chrome as the actual lug doesn't extend all the way through to the length of the chrome cap.
#8
Legacy TMS Member
Most of the damage occurring to the 2pc lug nuts are using a standard sae impact socket instead of the proper metric size; using a 12 point socket, which usually rounds the nut off; and definitely using a shallow impact socket instead of a proper 6 point deep impact. The shallow socket may deform the chrome as the actual lug doesn't extend all the way through to the length of the chrome cap.
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